Support Forgejo, Gitea, Gitlab, Radicle

[trymeouteh]

Support other git services such as Forgejo, Gitea, Github and Radicle.

For example, the directory on Forgejo is .forgejo/workflows
https://forgejo.org/docs/latest/user/actions/

[ChristopherHX]

Forgejo, Gitea

Those are using forks of nekos/act, while Forgejo act is fork of fork.

e.g. gitea use the act_runner binary to run locally it has a command for that

Side note: use .github/workflows on Gitea if you don't use Gitea Actions Extension (yes there are multiple differences to allowed syntax)

Gitlab, Radicle

I don't think this is a good idea, at least gitlab pipelines are fundermentally different